Allow your cat to come and go as they please with the Cat Mate Glass Fitting Cat Flap. This circular, transparent cat flap features a four-way locking system for controlled access. It's suitable for single/multiple glazing and UPVC/metal and wooden doors. The flap is self-lining to 32mm thick and features a draught-proof brush seal and magnetic closure for comfort and security. Installation requires a cut-out size of diameter 223mm, with a flap opening of 145mm width and 145mm height. The overall diameter is 245mm. It comes with a 3-year guarantee.